Download 3100SE.

CHAPTER 3: PROPULSION & RELATED SYSTEMS
Fuel Fill and Vent
• The fuel fill fitting is marked “GAS” or “DIESEL”.
• The fuel tank vent is located below the fuel fill.
• If you experience difficulty filling the fuel tank, check to see that the fuel fill hose and vent hose are free of
obstructions and kinks.
Fuel Filters
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The fuel pickup tube (located inside the fuel tank) is equipped with a fine mesh screen filter.
In addition, when supplied by the engine manufacturer, a fuel filter is installed on the engines.
Periodically replace the fuel filters to make sure they remain clean and free of debris.
Consult with your selling dealer or local marina concerning fuel additives that help to prevent fungus or other
buildup in your fuel tank.
Anti-siphon Valve
NOTICE
• If an engine running problem is diagnosed as fuel starvation, check the anti-siphon valve. If
the valve is stuck or clogged, change or replace it while the engines are shut down.
• NEVER run the engines with the anti-siphon valve removed, except in an emergency.
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Your boat is equipped with an anti-siphon valve, which is an integral part of fuel system.
The valve is located at the point where the fuel feed line attaches to the fuel tank.
The valve is spring loaded and is opened by fuel pump vacuum.
This valve will prevent fuel from siphoning from the tank in the event of a fuel line rupture.
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